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3 years ago

What is the slope of this graph? 3 13 −3 −13

Mathematics

1 answer:

zzz [600]3 years ago

7 0

Answer:

-3

Step-by-step explanation:

find two points on the line are exact on the grid,

the one （4, -10）,

the another （-1,5）,

then the slope is：

（-10-5）/（4-（-1））

=-15/5

=-3

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(1 pt) In a study of red/green color blindness, 950 men and 2050 women are randomly selected and tested. Among the men, 89 have

Ivahew [28]

Answer: (0.066,0.116)

Step-by-step explanation:

The confidence interval for proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : The proportion of men have red/green color blindness = $p_1=\dfrac{89}{950}\approx0.094$

The proportion of women have red/green color blindness = $p_2=\dfrac{6}{2050}\approx0.003$

Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

Now, the 99% confidence interval for the difference between the color blindness rates of men and women will be:-

$(0.094-0.003)\pm (2.576)\sqrt{\dfrac{0.094(1-0.094)}{950}+\dfrac{0.003(1-0.003)}{2050}}\approx0.091\pm 0.025\\\\=(0.09-0.025,0.09+0.025)=(0.066,\ 0.116)$

Hence, the 99% confidence interval for the difference between the color blindness rates of men and women= (0.066,0.116)

4 0

3 years ago

What is the equation of a line, in point slope form that passes through (-2, -6) and has a slope of 1/3

andreyandreev [35.5K]

<u>Answer:</u>

The equation of a line, in point slope form that passes through (-2, -6) and has a slope of 1/3 is $y+6=\frac{1}{3}(x+2)$

<u>Solution:</u>

Given that line passes through (-2, -6) and has slope of 1/3

We have to find the equation of the line

The point slope form is given as

$y-b=m(x-a)$

where m is the slope of the line and a, b are the x, y coordinates of the given point through which the line passes.

Here in this question, m = 1/3 and a = -2 and b = -6

By substituting in point slope form we get,

$y - (-6) = \frac{1}{3}(x - (-2))\\\\y + 6 = \frac{1}{3}(x + 2)$

Hence the equation of a line, in point slope form that passes through (-2, -6) and has a slope of 1/3 is $y+6=\frac{1}{3}(x+2)$

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3 years ago

BigorU [14]

Yup here you go it’s uhmmmm idk anymore heheh

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2 years ago

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faltersainse [42]

Answer:

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Step-by-step explanation:

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2 years ago

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omeli [17]

2.4cm is the tangent of A

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2 years ago